Bug Description

From http://www.openwall.com/lists/oss-security/2011/09/08/7:
"CtcpParser::packedReply in src/core/ctcpparser.cpp in Quassel does not process
certain CTCP requests correctly, allowing a remote attacker connected to the
same IRC network as the victim to cause a Denial of Service condition by
sending specially crafted CTCP requests. This was demonstrated in various
exploits on freenode today."